2026-08-21T00:04:48Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/591242024-09-09T15:06:37Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
Urbieta Quiroga, Ana Irene
author
Fernández Sánchez, Paloma
author
Piqueras De Noriega, Francisco Javier
author
Sekiguchi, T.
2023-06-20T19:01:29Z
2023-06-20T19:01:29Z
2001-07
0268-1242
10.1088/0268-1242/16/7/311
https://hdl.handle.net/20.500.14352/59124
http://dx.doi.org/10.1088/0268-1242/16/7/311
http://iopscience.iop.org
Bulk ZnO single crystals grown by the hydrothermal and flux methods have been characterized by scanning tunnelling spectroscopy performed in the different crystalline faces. Normalized differential conductance has been found to depend on the face considered. Polar O-terminated surfaces show an intrinsic conduction behaviour and surface bandgap in the range 0.4-0.8 eV, which depends on the position probed. The Zn polar surfaces show mainly n-type conduction. The non-polar m regions present either intrinsic or p-type behaviour. The differences observed are attributed to the nature of impurities and defects appearing in the polar and non-polar surfaces during crystal growth.
eng
Scanning tunnelling spectroscopy characterization of ZnO single crystals
journal article
URL
https://docta.ucm.es/bitstreams/f60f6552-95f6-4fca-8a94-f5b25e288e43/download
File
MD5
e6d4f93dfb1245927d5d7596ba8506b4
244352
application/pdf
PiquerasJ153.pdf
URL
https://docta.ucm.es/bitstreams/36e3c0b8-1478-4877-b188-e9b6d612552a/download
File
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6286f3a598f4e00e465e0fed0f03f432
18877
text/plain
PiquerasJ153.pdf.txt